123280086 has 16 divisors (see below), whose sum is σ = 246670704. Its totient is φ = 41074944.

The previous prime is 123280057. The next prime is 123280093. The reversal of 123280086 is 680082321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20050 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (15416919).

Almost surely, 2^123280086 is an apocalyptic number.

123280086 is an abundant number, since it is smaller than the sum of its proper divisors (123390618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123280086 is a wasteful number, since it uses less digits than its factorization.

123280086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 123280086 is about 11103.1565781988. The cubic root of 123280086 is about 497.6961824866.

It can be divided in two parts, 1232 and 80086, that added together give a palindrome (81318).

The spelling of 123280086 in words is "one hundred twenty-three million, two hundred eighty thousand, eighty-six".